Storage battery.



NO MODEL.

www,

G. BRUN,

STORAGE BATTERY.

APPLIUATION FILED 1330.4, w99.

s SHEETS-HEBT 2.

JATENTED JUNE 2s, 1903,`

No. 731,429. V RATRNTRD JUNR 23, 1903. o., BRUNI).

STORAGE BATTERY.

APPLICATION FILED DEO. 4, 1899.

N0 MODEL Y 3 SHEETS-SHEET 3` llltirrnn stares Patented June 23, 1903.

@Aralar @trici-s,

OARLO BRUNO, or ROME, ITALY, AssicNon To Lniei rALnsTixi, or

ROME, ITALY.

sro eso e BATTERY SPECIFICATION forming part of Letters Patent No. 731,429, dated June 23,1903.

Application filed December 4, 1899. Serial No. 739,192. (No model.)

To all whom. it may concern:

Beit known that I, CARLO BRUNO, mechanical engineer, a subject ol the'King, of Italy, residing at Rome, Italy, (whose post-oiiice address is 12 Via Federico Cesi, Rome, Italy,) have invented certain new and useful Improvements in Storage Batteries, (for which I have obtained Letters Patent in the Kingdom of Italy, dated Julyl, 1899, Reg. Att. Vol. III, No. 1,) of which the followingir is a specification.

The object of my present invention is to provide a storage battery for electric traction incorporating the advantages of lightness, rapidity of reaction, and resistance of the ac tive mass against the shocks of the vehicle.

'Lightness and efficiency, which are oi course the desiderata for storage batteries lOr` use in motor-vehicles, have been sought to be attained by reducingr to the greatest possible extentthe weight of the conducting-plates and by increasing as much as possible the points of contact ot' the latter with the active mass. Thus, for example, it has been proposed to providethe lead or like plates with projections extending Obliquely from the plate upon both sides and projecting into the` attempted to introduceitat the side the prowhich maintain the mass upon both sides and which are connected one with the other by transverse pins. This method is undesirable the additional contact-surfaces are not in one piece with the nets, so that at their point of attachment the conductor will be interrupted by the mass and fluid which will penetrate between the parts. According to my invention I obviate these detects in an extremely simple manner by providing a very thin conductiug-plate of lead or the like (of less than the tenth of a millimeter in thickness) `by rolling and stamping outlet the plate itself upon one or both sides projections at right angles to the plate. It is important that this should be effected by stamping, for by pressing or casting these extremely fine projections would break off and remain in the Wooden molds. That the projections should be perpendicular to the plate is still more iinportan t, because if this isso I am able without any danger ofbending the projections to apply the mass which has previously been rolled or otherwise suitably formed into sheets laterally to the metal plate by a suitable process in such a manner thatan endless strip of themass is pressed upon an endless strip of lead plate provided with projections in a continuous manner and then out into suitable lengths.

A plate of the above-described thinness, which is of course liable to bend easily, cannot be allowed to stand upon the bottom of the container nor can it be suspended in the usual manner unless it is provided with a handle, which would greatly increase its Weight. The suspension is elected by the elnployment of a pocket or casing, of celluloid or the like, perforated in the usual manner, which casing is suspended upon transverse strips, provided on. the general container by means of strap or loo`p-like continuatious of their upper portions. I stiften these pockets laterally by providing upon their` sides vertical strips of Celluloid or similar material, which may advantageously be corrugated, thereby maintaining said pockets at a predetermined distance one from the other, so

that each group of electrodes constitutes as compact assemblage.

In order that my present invention may be more clearly understood, I'will proceed to describe same with reference to the annexed i lettered P P2 P3 P4 P5 gether by the acid 1; Fig. 2, the

drawings representing one of its forms of eX- ecution, and in which` Figure l shows a conductor-plate. Fig. la is an end elevation of the parts seen in Fig. support of same. Fig. 2 is a vertical transverse section of the part seen in Fig. 2. Figs. 3 and i are sectional views of' battery on lines 3 3 and fl- 4, respectively, of Fig. 6. 5 is a plan view of the cell in which the cover has been omitted, and Fig. G is a plan view of same with its cover in position.

`The conductor-plate l), to the various types of batteries, may be of lead, copper, or zinc, is of thin sheet-lead of a few tenths of millimeter of thickness in my present form of execution. its two faces are provided with a plurality of points a, and the rim b of the lead plate is reinforced in form of tails and serves as a conductor.

In Figs. i and 5 the positive plates are and the negative ones which, according The active mass may consist of a paste of powdered oxid of lead and carbon bound toand render the mass in any known way extremely porous without increasing its weight, while iu the old constructions of batteries the porosity can only be obtained by considerably increasing their di- -mensions and the weight of their supportl non-conducti y receptacle.

The support-boxes are made of a resistant ve material-such as celluloid, hard rubber, (itc. The two plates s s', Figs. 2 and 3, are provided with a number of holes c, one of the plates, as s, being provided with corrugated bands of equivalent material. The support T, made of hard rubber, celluloid, or other equivalent material, stands with its ends t t2 on the inner rim of the receptacles, Figs. 3 and 5, and is xed in position by means of two 'extensions or lugs n n 0f the Tongues d on the upper edges of the plates s and of an angular or inverted- U shape are inserted into the recesses between the lugs c e of the supportato fix the boxes in position. while between the lngsff are inserted the conducting-tails. b of the plates. The receptacle R, Figs. A3 to 6, consists in a hard-rubber box having an inner flange for the cover and the supports T. Luge Q hold the boxes apart from each other to allow the air to circulate freely. The cover consists of two rectangular sections exc', Figs. 3 to 6, the rim h of which is grooved and has inserted into it a rubber band fi. In order to shut the box R, it is sufficient to lower the cover-sections cx 1;', Figs. et and 6, and screw the rings r to the two bars 'u o. The rubber band t' forms a tight closure with the Walls ofthe box and the mantles m surrounding the conductors b.

g represents studs or shoulders which engage over the sections ct the cover.

'reasse- 'lwo bundles of conductors of opposite polarity of two contiguous batteries may be connected by soldering, bolting, clamping, or by any other suitable means.

tis a stopper closing an aperture in the cover, through which Vaperture the battery liquid may be introduced.'

In motor-cars it is not necessary that the receptacles be hermetically closed, and the cover may be replaced by one or more perforated plates of cell uloid, hard rubber, or similar material.

In the type of battery forming the object of' my present invention the conductor-plates provide a large surface, the points a penetrating into the active mass and the paste in turn being submerged in the electrolytic liquid, so that all particles of the active mass are surrounded by liquid in order that the reactions may take place with great rapidity in the whole of the mass, so that the inner resistance is thereby diminished,'and also the drawbacks resulting in other batteries from the fall-ing down ofthe active mass are diminished. The metal is utilized as conductor, while a lighter material is-nsed as support. The corrugated bands 'at last hold the plates at a desired and constant distance apart from each other and stiften them, so as to render the whole of the battery as stii as a block. Besides, the corrugations of these plates provide channels of so small dimensions as to oppose a great resistance to the movement of the liquid,which,

as a matter of fact, remains almost still between the various boxes and is not thrown out by the shocks of the vehicle.

I desire it to .be clearly understood that many diterent arrangements and other materials than those hereinbeforeidescribed may be used without departing from the gist of my invention, and

What I-claiinas new, and desire to secure by Letters Patent, is-

The combination' with a receptacle of a sories of boxes or cases arranged therein, the walls of each bor; being perforated, active material contained in each box, a conductingplatearranged within the active mass and having points projecting laterally from each face into theactive materiahsustaining means at the upper edges of the boxes, the terminals on the conducting-plates, the supports T, of non-conductive and non-corrosive material, secured to the receptacle and having lugs e j" with which engage the sustaining means on the boxes and the terminals on the conducting-plates respectively.

In witness whereof I have hereunto signed my name in the presence of two witnesses.

BRUNO, CA l tLO.

Witnesses:

B. ZRAMARDT, @narrano PnmioNs.

the necessary quantity of IOO IIO 

